Audi A7 2023 - Page 293

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Emergency assistance
Removing and installing a wheel
Fig. 169 Wheel: internal hex socket to turn the wheel
bolts
Fig. 170 Wheel: alignment pin in the top hole
Removing a wheel
> Remove the top wheel bolt completely using
the hex socket in the screwdriver handle from
the vehicle tool kit © fig. 169 and place it on a
clean surface.
» Then install the alignment pin from the vehicle
tool kit by hand in the empty wheel bolt hole
> fig. 170).
» Remove the rest of the wheel bolts.
> Remove the wheel > (2). The alignment pin re-
mains in the hole while doing this.
Installing a wheel
Read the directions on > page 297 when instal-
ling unidirectional tires.
» Slide the wheel on over the alignment pin >@.
» Install the wheel bolts and tighten them gently
using the hex socket.
1 Applies to: vehicles with ceramic brake rotors*: Use a sec-
‘ond alignment pin* from the vehicle tool kit for the lowest
hole according to the steps described for the first align-
ment pin.
> Remove the alignment pin and tighten the re-
maining wheel bolt.
» Carefully lower the vehicle using the vehicle
jack".
» Tighten the wheel bolts in a diagonal pattern
using the wheel wrench*.
The wheel bolts must be clean and loosen and
tighten easily. Check the contact surfaces for the
wheel and hub. Contaminants on these surfaces
must be removed before installing the wheel.
VAN WARNING
— Read and follow the important information
and notes under > page 262.
— Never use the hex socket in the screwdriver
handle to tighten the wheel bolts. Using the
hex socket will not achieve the required
tightening torque, which increases the risk
of an accident.
When removing or installing the wheel, the
rim could hit the brake rotor and damage the
rotor. Work carefully and have a second per-
son help you.
Unidirectional tires
Aunidirectional tire profile is identified by arrows
on the tire sidewall that point in the running di-
rection. You must always maintain the specified
running direction. This is necessary to ensure the
tire's optimal performance in regard to adhesion,
running noise, and friction, and to reduce the risk
of hydroplaning.
To benefit fully from the advantages of the uni-
directional tire design, you should replace faulty
tires as soon as possible and restore the correct
running direction on all of the tires.
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